Power DER-95 30w adapter using top245y Datasheet

Design Example Report
Title
30W Adapter using TOP245Y
Specification
Input: 90 – 265 VAC
Output: 9.7 V / 3.0 A
Application
Portable DVD
Author
Power Integrations Applications Department
Document
Number
DER-95
Date
September 12, 2005
Revision
1.0
Summary and Features
•
•
•
•
Low cost solution for 30 7W adapter
EER28 core
Small common mode choke
Small X-cap
The products and applications illustrated herein (including circuits external to the products and transformer
construction) may be covered by one or more U.S. and foreign patents or potentially by pending U.S. and foreign
patent applications assigned to Power Integrations. A complete list of Power Integrations’ patents may be found at
www.powerint.com.
Power Integrations
5245 Hellyer Avenue, San Jose, CA 95138 USA.
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
30 W Adapter for Portable DVD
September 12, 2005
Table Of Contents
1
2
3
4
Introduction................................................................................................................. 4
Power Supply Specification ........................................................................................ 5
Schematic................................................................................................................... 6
Circuit Description ...................................................................................................... 7
4.1
Input EMI Filtering ............................................................................................... 7
4.2
Reduced current limit .......................................................................................... 7
4.3
Output Rectification ............................................................................................. 7
4.4
Output Feedback................................................................................................. 7
5 PCB Layout ................................................................................................................ 8
6 Bill Of Materials .......................................................................................................... 9
7 Transformer.............................................................................................................. 10
7.1
Transformer Diagram ........................................................................................ 10
7.2
Electrical Specifications..................................................................................... 10
7.3
Materials............................................................................................................ 10
7.4
Detailed copper shield....................................................................................... 11
7.5
Transformer Construction.................................................................................. 11
7.6
Winding Instructions .......................................................................................... 11
8 Transformer Spreadsheets....................................................................................... 12
9 Performance Data .................................................................................................... 14
9.1
Efficiency........................................................................................................... 14
9.2
No-Load Input Power Integrations..................................................................... 14
9.3
Output regulation............................................................................................... 15
9.3.1
Line regulation............................................................................................ 15
9.3.2
Load regulation (taken at the end of the output cable) ............................... 15
9.4
Thermal Performance........................................................................................ 15
9.5
Maximum output current.................................................................................... 16
10
Waveforms............................................................................................................ 16
10.1 Drain Voltage, Normal Operation ...................................................................... 16
10.2 Output Voltage Start-up Profile ......................................................................... 16
11
Output Ripple Measurements ............................................................................... 17
11.1.1 Ripple Measurement Technique ................................................................ 17
11.1.2 Measurement Results ................................................................................ 18
12
Loop performance................................................................................................. 19
13
Conducted EMI ..................................................................................................... 20
14
Revision History.................................................................................................... 21
The products and applications illustrated herein (including circuits external to the products and transformer
construction) may be covered by one or more U.S. and foreign patents or potentially by pending U.S. and foreign
patent applications assigned to Power Integrations. A complete list of Power Integrations’ patents may be found at
www.powerint.com.
Page 2 of 22
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
30 W Adapter for Portable DVD
September 12, 2005
Important Notes:
Although this board is designed to satisfy safety isolation requirements, the engineering
prototype has not been agency approved. Therefore, all testing should be performed
using an isolated source to provide power to the prototype board.
Design Reports contain a power supply design specification, schematic, bill of materials,
and transformer documentation. Performance data and typical operation characteristics
are included. Typically only a single prototype has been built.
Page 3 of 22
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
30 W Adapter for Portable DVD
September 12, 2005
1 Introduction
This document is an engineering report describing a single output 30 W power supply
utilizing a TOP245Y.
The document contains the power supply specification, schematic, bill of materials,
transformer documentation, printed circuit layout, and performance data.
Figure 1 – Populated Board
Page 4 of 22
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
30 W Adapter for Portable DVD
September 12, 2005
2 Power Supply Specification
Description
Input
Voltage
Frequency
No-load Input Power (230 VAC)
Outputs
Voltage
Current
Efficiency
Symbol
Min
Typ
Max
Units
Comment
VIN
fLINE
90
47
265
64
1.0
VAC
Hz
W
2 Wire – no P.E.
50/60
VDC
IO
9.7
3.0
VDC
A
η
81
%
Measured at POUT (30 W), 25 oC
Environmental
Conducted EMI
Meets CISPR22B / EN55022B
Designed to meet IEC950, UL1950
Class II
Safety
Ambient Temperature
Page 5 of 22
TAMB
0
40
o
C
Free convection, sea level
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
30 W Adapter for Portable DVD
September 12, 2005
3 Schematic
Figure 2 – Schematic
Page 6 of 22
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
30 W Adapter for Portable DVD
September 12, 2005
4 Circuit Description
The schematic in Figure 2 shows an off-line flyback converter using the TOP245Y. The
circuit is designed for 90 VAC to 265 VAC input and provides an isolated 9.7 V, 3.0 A
continuous output.
4.1 Input EMI Filtering
Conducted EMI filtering is provided by pi formed filter C7, C4, L1, The switching
frequency jitter feature of the TOPSwitch-GX family allows the use of a small, low cost
common mode choke for L1.
To keep the peak DRAIN voltage acceptably below the BVDSS (700V) of U1, diode D2,
C5, R1 and R3 form a primary clamp. This network clamps the voltage spike seen on the
DRAIN due to primary leakage inductance. Diode D3 and capacitor C8 provide rectified
and filtered bias supply for U1.
4.2 Reduced current limit
Resistor R4, R6, R9 and R13 are used to set the maximum current limit for both high line
and low line.
R2 is used for input undervoltage lockout (UVLO).
4.3 Output Rectification
The secondary of T1 is rectified and filtered by D4, C1 & C3. Post filter choke L2 and C15
provide additional high frequency filtering.
4.4 Output Feedback
DC feedback to the output voltage regulator error amplifier (U3) comes from a voltage
divider network R8 and R16. The center point of this network is tied to the 2.5 V REF pin
of U3. Capacitor C11 and resistor R12 roll off the high frequency gain of U3 while R5 sets
the overall gain.
C9 is a “soft finish” capacitor to eliminate output over shoot during start up.
Page 7 of 22
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
30 W Adapter for Portable DVD
September 12, 2005
5 PCB Layout
Figure 3 – Printed Circuit Layout
Note: R18 and C17 are not shown in this layout. They are added onto the bottom of the
board.
Page 8 of 22
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
30 W Adapter for Portable DVD
September 12, 2005
6 Bill Of Materials
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
Page 9 of 22
2
2
2
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
C1,C3
C9,C12
C5,C13
C6
C7
C4
C8
C10,C11
C15
C16
C17
D1
D2
D3
D4
D5
F1
L1
L2
R1
R2
R3
R4,R6,R9
R5
R7
R8
R10
R11
R12
R13
R16
R17
R18
T1
U1
U2
U3
1000 uF, 16V
47 uF, 16V
1 nF
1.0 nF
33 uF, 400V
47 uF, 400V
22 uF
100 nF
100 uF
10 nF
2.2 nF
2KBP06M
1N4007GP
BAV20
MBR1060
Red
2 A
6 mH
3.3 uH
100 k
2.0 M
100
2.4 M
180
3 k
28 k
220
6.8
1.2 k
11.3 k
9.53 k
22
1.0 K
EER28
TOP245Y
PC817A
TL431
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
30 W Adapter for Portable DVD
September 12, 2005
7 Transformer
7.1
Transformer Diagram
11
3
WD#4
14T #24
Primary
3T # 26X5 TIW
Secondary
10
2
2
WD#2
WD#3
14T #24
Primary
5
4T #26X4
4
WD#1
Bias
6
7.2
7.3
Electrical Specifications
Electrical Strength
60Hz 1minute, from Pins 1-6 to
Pins 7-12
Primary Inductance
All windings open
(Pin 4 to Pin 3)
Resonant Frequency.
All windings open
(Pin 4 to Pin 3)
Primary Leakage
Pins 10-11 shorted
Inductance.
(Pin 4 to Pin 3)
Materials
Item
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
Page 10 of 22
3000 V ac
600 uH +/- 5% at
132 KHz
900 KHz (Min.)
4 uH Max.
Description
Core: PC40EER28-Z, TDK or equivalent Gapped for AL of 765
nH/T2
Bobbin: Horizontal 12 pin
Magnet Wire: #24 AWG
Magnet Wire: #26 AWG
Copper, 1 mil thick, 10 mm wide and 12.6 mm wide
Triple Insulated Wire: #26 AWG.
Tape: 3M 1298 Polyester Film, 2.0 mils thick, 10.6 mm wide and
16.0 mm wide
Varnish
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
7.4
30 W Adapter for Portable DVD
Detailed copper shield
Wire
7.5
September 12, 2005
Tape
Copper
Transformer Construction
Bally band
Tape
Copper Foil
WD#4 ½ Primary
3
2
3
9, 10
Margin
Tape
11, 12
WD#3
Secondary
3
2
WD#2 ½ Primary
4
Tape
5
WD#1 Bias
6
7.6
Winding Instructions
WD1
Bias Winding
Insulation
WD#2
½ Primary winding
Insulation
Copper Foil
[10 mm wide]
Insulation
WD #3
Secondary Winding
Insulation
Copper Foil
[10 mm wide]
Insulation
Page 11 of 22
Primary pin side of the bobbin oriented to left hand side. Start at Pin 11
temporally wind 4 turns with 4 wires of item [4] parallel from right to left.
Wind with tight tension. Finish on pin 6. Flip the starting lead over to pin 5.
4 Layers of tape [7, 10.6 mm wide] for insulation.
Start at pin 4, wind 14 turns of item [3] from left to right. Finish at pin 2
1 Layers of tape [7, 10.6 mm wide] for insulation.
Using prepared copper foil in 7.4, start at Pin 3 wind 1 turn. Apply insulation
tape of [7, 10.6 mm wide] before the end to avoid short circuit.
1 Layers of tape [7, 10.6 mm wide] for insulation.
Start at pin 11 and 12, wind 3 turns of item [6] with 5 wire parallel. from right
to left. Wind uniformly, in a single layer across entire bobbin evenly. Finish
on pin 9, 10.
1 Layers of tape [7, 10.6 mm wide] for insulation.
Using prepared copper foil in 7.4, start at Pin 3 wind 1 turn. Apply insulation
tape of [7, 10.6 mm wide] before the end to avoid short circuit.
1 Layers of tape [7, 10.6 mm wide] for insulation.
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
WD#4
½ Primary winding
Insulation
[16 mm wide]
Core Assembly
Balley band
[12.6 mm wide]
Varnish
30 W Adapter for Portable DVD
September 12, 2005
Start at pin 2, wind 14 turns of item [3] from left to right. Finish at pin 3
3 Layers of tape [7] for insulation.
Assemble and secure core halves.
Put one turn of copper contacting the core. Leave 22 AWG wire 50mm long
for being connected to primary ground.
Varnish
8 Transformer Spreadsheets
ACDC_TOPSwitchGX_03 INPUT INFO
2204; Rev.1.9; Copyright
Power Integrations Inc.
2004
ENTER APPLICATION
VARIABLES
VACMIN
90
265
VACMAX
50
fL
VO
10
30
PO
0.8
n
Z
0.5
15
VB
3
tC
CIN
INFO
OUTP OUTP UNIT
UT
UT
80
TOP_GX_FX_032204.xls: TOPSwitch-GX/FX
Continuous/Discontinuous Flyback Transformer
Design Spreadsheet
Volts
Volts
Hertz
Volts
Watts
Minimum AC Input Voltage
Maximum AC Input Voltage
AC Mains Frequency
Output Voltage
Output Power
Efficiency Estimate
Loss Allocation Factor
Volts Bias Voltage
mSeco Bridge Rectifier Conduction Time Estimate
nds
uFarad Input Filter Capacitor
s
ENTER TOPSWITCH-GX VARIABLES
TOP-GX
TOP24
Univer 115 Doubled/230V
5
sal
Chosen Device
TOP24 TOP24 Power Power 60W
85W
5
5
Out
Out
0.72
External Ilimit reduction factor (KI=1.0 for default ILIMIT,
KI
KI <1.0 for lower ILIMIT)
1.166 1.166 Amps Use 1% resistor in setting external ILIMIT
ILIMITMIN
ILIMITMAX
1.426 1.426 Amps Use 1% resistor in setting external ILIMIT
Frequency (F)=132kHz,
F
Full (F) frequency option - 132kHz
(H)=66kHz
13200 13200 Hertz TOPSwitch-GX Switching Frequency: Choose between
fS
0
0
132 kHz and 66 kHz
12400 12400 Hertz TOPSwitch-GX Minimum Switching Frequency
fSmin
0
0
14000 14000 Hertz TOPSwitch-GX Maximum Switching Frequency
fSmax
0
0
97
Volts Reflected Output Voltage
VOR
10
Volts TOPSwitch on-state Drain to Source Voltage
VDS
0.5
Volts Output Winding Diode Forward Voltage Drop
VD
VDB
0.7
Volts Bias Winding Diode Forward Voltage Drop
KP
0.6
Ripple to Peak Current Ratio (0.4 < KRP < 1.0 : 1.0<
KDP<6.0)
ENTER TRANSFORMER CORE/CONSTRUCTION VARIABLES
Core Type
eer28
Core
EER28 EER28
EER28 EER28_BOBBI
Bobbin
_BOBB
N
IN
AE
1.18
1.18
1.18
LE
5.55
5.55
5.55
4600
4600 4600
AL
12.7
12.7
12.7
BW
M
Page 12 of 22
P/N:
P/N:
PC40EER28-Z
BEER-28-1112CPH
cm^2
cm
nH/T^2
mm
mm
Core Effective Cross Sectional Area
Core Effective Path Length
Ungapped Core Effective Inductance
Bobbin Physical Winding Width
Safety Margin Width (Half the Primary to Secondary
Creepage Distance)
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
L
NS
30 W Adapter for Portable DVD
1
3
September 12, 2005
Number of Primary Layers
Number of Secondary Turns
DC INPUT VOLTAGE PARAMETERS
VMIN
VMAX
98
375
98 Volts
375 Volts
Minimum DC Input Voltage
Maximum DC Input Voltage
CURRENT WAVEFORM SHAPE PARAMETERS
DMAX
IAVG
IP
IR
IRMS
0.52
0.38
1.04
0.63
0.54
0.52
0.38
1.04
0.63
0.54
Maximum Duty Cycle
Average Primary Current
Peak Primary Current
Primary Ripple Current
Primary RMS Current
TRANSFORMER PRIMARY DESIGN PARAMETERS
LP
597
Amps
Amps
Amps
Amps
NP
NB
ALG
BM
BP
BAC
28
4
777
1902
2603
571
597 uHenri
es
28
4
777 nH/T^2
1902 Gauss
2603 Gauss
571 Gauss
ur
LG
BWE
OD
INS
1722
0.16
12.7
0.46
0.06
1722
0.16
12.7
0.46
0.06
DIA
AWG
0.39
27
0.39
27
CM
CMA
203
374
203
374
Primary Inductance
Primary Winding Number of Turns
Bias Winding Number of Turns
Gapped Core Effective Inductance
Maximum Flux Density at PO, VMIN (BM<3000)
Peak Flux Density (BP<4200)
AC Flux Density for Core Loss Curves (0.5 X Peak to
Peak)
Relative Permeability of Ungapped Core
mm
Gap Length (Lg > 0.1 mm)
mm
Effective Bobbin Width
mm
Maximum Primary Wire Diameter including insulation
mm
Estimated Total Insulation Thickness (= 2 * film
thickness)
mm
Bare conductor diameter
AWG Primary Wire Gauge (Rounded to next smaller standard
AWG value)
Cmils Bare conductor effective area in circular mils
Cmils/ Primary Winding Current Capacity (200 < CMA < 500)
Amp
TRANSFORMER SECONDARY DESIGN PARAMETERS (SINGLE OUTPUT / SINGLE OUTPUT EQUIVALENT)
Lumped parameters
ISP
9.62
9.62 Amps Peak Secondary Current
ISRMS
4.79
4.79 Amps Secondary RMS Current
3.00
3.00 Amps Power Supply Output Current
IO
3.73
3.73 Amps Output Capacitor RMS Ripple Current
IRIPPLE
CMS
AWGS
958
20
958 Cmils
20 AWG
DIAS
ODS
0.81
4.23
0.81 mm
4.23 mm
INSS
1.71
1.71 mm
VOLTAGE STRESS PARAMETERS
VDRAIN
598
598 Volts
51
76
51 Volts
76 Volts
PIVS
PIVB
Page 13 of 22
Secondary Bare Conductor minimum circular mils
Secondary Wire Gauge (Rounded up to next larger
standard AWG value)
Secondary Minimum Bare Conductor Diameter
Secondary Maximum Outside Diameter for Triple
Insulated Wire
Maximum Secondary Insulation Wall Thickness
Maximum Drain Voltage Estimate (Includes Effect of
Leakage Inductance)
Output Rectifier Maximum Peak Inverse Voltage
Bias Rectifier Maximum Peak Inverse Voltage
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
30 W Adapter for Portable DVD
September 12, 2005
9 Performance Data
All measurements performed at room temperature, 60 Hz input frequency.
The data were taken at the end of the output cable. The DC resistance of the cable is
about 0.05 ohm.
9.1
Efficiency
Full load efficiency
84%
Efficiency (%)
82%
80%
78%
76%
74%
72%
70%
90
125
160
195
230
265
Input Voltage (VAC)
Figure 4 – Efficiency vs input voltage
9.2
No-Load Input Power Integrations
No load consumption
1
Input power (W)
0.8
0.6
0.4
0.2
0
90
125
160
195
230
265
Input Voltage (VAC)
Figure 5 – No-load input vs input voltage, room temperature
Page 14 of 22
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
9.3
30 W Adapter for Portable DVD
September 12, 2005
Output regulation
9.3.1 Line regulation
Line regulation
10
Output voltage (VDC)
8
6
4
2
0
90
125
160
195
230
265
Input Voltage (VAC)
Figure 6 – Output voltage vs input voltage at 3.0 A load
9.3.2 Load regulation (taken at the end of the output cable)
Output Voltage (VDC)
Load regulation
10
9.9
9.8
9.7
9.6
9.5
9.4
9.3
9.2
9.1
9
115 VAC
0
0.5
1
230 VAC
1.5
2
2.5
3
Output Current (A)
Figure 7 – Output voltage vs current
9.4 Thermal Performance
Thermal was measured inside the sealed case, at worst case, which is at high line 265
VAC input, 3.0 A load. PSU was placed in still air, with ambient temperature of 42°C.
Page 15 of 22
Item
265 VAC
Ambient
42 °C
TOP245Y
101 °C
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
30 W Adapter for Portable DVD
September 12, 2005
9.5 Maximum output current
This is the load current beyond which the PSU goes into auto-restart.
Item
Max. Io
115 VAC
3.76 A
230 VAC
3.83 A
10 Waveforms
10.1 Drain Voltage, Normal Operation
Figure 8 – Drain voltage, 90 VAC input, 3.0 A load
Figure 9 – Drain voltage 265 VAC, 3.0 A load
10.2 Output Voltage Start-up Profile
Figure 10 – 115 VAC input, 3.0 A load
Page 16 of 22
Figure 11 – 230 VAC, 3.0 A load
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
30 W Adapter for Portable DVD
September 12, 2005
11 Output Ripple Measurements
11.1.1 Ripple Measurement Technique
For DC output ripple measurements, a modified oscilloscope test probe must be utilized
in order to reduce spurious signals due to pickup. Details of the probe modification are
provided in Figure 12 and Figure 13.
The 5125BA probe adapter is affixed with two capacitors tied in parallel across the probe
tip. The capacitors include one (1) 0.1 µF/50 V ceramic type and one (1) 1.0 µF/50 V
aluminum electrolytic. The aluminum electrolytic type capacitor is polarized, so
proper polarity across DC outputs must be maintained (see below).
Probe Ground
Probe Tip
Figure 12 – Oscilloscope Probe Prepared for Ripple Measurement. (End Cap and Ground Lead Removed)
Figure 13 – Oscilloscope Probe with Probe Master 5125BA BNC Adapter. (Modified with wires for probe
ground for ripple measurement, and two parallel decoupling capacitors added)
Page 17 of 22
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
30 W Adapter for Portable DVD
September 12, 2005
11.1.2 Measurement Results
Figure 14 – Output Ripple, 115 VAC, 3.0 A load
Figure 15 – Output Ripple, 230 VAC, 3.0 A load
Page 18 of 22
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
30 W Adapter for Portable DVD
September 12, 2005
12 Loop performance
Figure 16 – Gain/phase at 115 VAC input, 3.0 A load
Figure 17 – Gain/Phase at 230 VAC input, 3.0 A load
Page 19 of 22
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
30 W Adapter for Portable DVD
September 12, 2005
13 Conducted EMI
EMI was tested at 230 VAC input, 3.0 A resistive load. The worst case result occurs at
230VAC input with artificial hand.
Figure 18 – Worst case conducted EMI, 230VAC, 3.0 A load
Page 20 of 22
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
30 W Adapter for Portable DVD
September 12, 2005
14 Revision History
Date
September 12, 2005
Page 21 of 22
Author
YG
Revision
1.0
Description & changes
First Release
Reviewed
VC / AM
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
DER-95
30 W Adapter for Portable DVD
September 12, 2005
For the latest updates, visit our Web site: www.powerint.com
Power Integrations may make changes to its products at any time. Power Integrations has no liability arising from your
use of any information, device or circuit described herein nor does it convey any license under its patent rights or the
rights of others. POWER INTEGRATIONS MAKES NO WARRANTIES HEREIN AND SPECIFICALLY DISCLAIMS
ALL WARRANTIES INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT OF THIRD PARTY RIGHTS.
PATENT INFORMATION
The products and applications illustrated herein (including circuits external to the products and transformer
construction) may be covered by one or more U.S. and foreign patents or potentially by pending U.S. and foreign
patent applications assigned to Power Integrations. A complete list of Power Integrations’ patents may be found at
www.powerint.com.
The PI Logo, TOPSwitch, TinySwitch, LinkSwitch, and EcoSmart are registered trademarks of Power
Integrations. PI Expert and DPA-Switch are trademarks of Power Integrations.
© Copyright 2004, Power Integrations.
Power Integrations Worldwide Sales Support Locations
WORLD HEADQUARTERS
5245 Hellyer Avenue,
San Jose, CA 95138, USA
Main:
+1-408-414-9200
Customer Service:
Phone: +1-408-414-9665
Fax:
+1-408-414-9765
e-mail:
[email protected]
GERMANY
Rueckertstrasse 3,
D-80336, Munich, Germany
Phone: +49-895-527-3910
Fax:
+49-895-527-3920
e-mail: [email protected]
JAPAN
Keihin-Tatemono 1st Bldg.
12-20 Shin-Yokohama,
2-Chome,
Kohoku-ku, Yokohama-shi,
Kanagawa 222-0033, Japan
Phone: +81-45-471-1021
Fax:
+81-45-471-3717
e-mail:
[email protected]
TAIWAN
17F-3, No. 510,
Chung Hsiao E. Rd., Sec. 5,
Taipei, Taiwan 110, R.O.C.
Phone: +886-2-2727-1221
Fax:
+886-2-2727-1223
e-mail:
[email protected]
CHINA (SHANGHAI)
Rm 807, Pacheer,
Commercial Centre,
555 Nanjing West Road,
Shanghai, 200041, China
Phone: +86-21-6215-5548
Fax:
+86-21-6215-2468
e-mail:
[email protected]
INDIA (TECHNICAL SUPPORT)
Innovatech
261/A, Ground Floor
7th Main, 17th Cross,
Sadashivanagar
Bangalore, India, 560080
Phone: +91-80-5113-8020
Fax:
+91-80-5113-8023
e-mail: [email protected]
KOREA
8th Floor, DongSung Bldg.
17-8 Yoido-dong,
Youngdeungpo-gu,
Seoul, 150-874, Korea
Phone: +82-2-782-2840
Fax:
+82-2-782-4427
e-mail:
[email protected]
UK (EUROPE & AFRICA
HEADQUARTERS)
1st Floor, St. James’s House
East Street
Farnham, Surrey GU9 7TJ
United Kingdom
Phone: +44-1252-730-140
Fax:
+44-1252-727-689
e-mail: [email protected]
CHINA (SHENZHEN)
Rm# 1705, Bao Hua Bldg.
1016 Hua Qiang Bei Lu,
Shenzhen, Guangdong,
518031, China
Phone: +86-755-8367-5143
Fax:
+86-755-8377-9610
e-mail:
[email protected]
ITALY
Via Vittorio Veneto 12, Bresso,
Milano,
20091, Italy
Phone: +39-028-928-6001
Fax: +39-028-928-6009
e-mail: [email protected]
SINGAPORE
51 Newton Road,
#15-08/10 Goldhill Plaza,
Singapore, 308900
Phone: +65-6358-2160
Fax:
+65-6358-2015
e-mail:
[email protected]
m
APPLICATIONS HOTLINE
World Wide +1-408-414-9660
APPLICATIONS FAX
World Wide +1-408-414-9760
ER or EPR template – Rev 3.6 – Single sided
Page 22 of 22
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
Similar pages